Make registerMessage check for duplicate registration.

isMessageRegistered duplicates work done in registerMessage, so it wastes
time when creating an activity (in the likely event the activity is not a
duplicate).

product/CMFActivity/Activity/Queue.py

@@ -239,16 +239,19 @@ class Queue(object):
     pass
 
   def isMessageRegistered(self, activity_buffer, activity_tool, m):
+    # BBB: deprecated
     message_list = activity_buffer.getMessageList(self)
     return m in message_list
 
   def registerMessage(self, activity_buffer, activity_tool, m):
     message_list = activity_buffer.getMessageList(self)
+    if m in message_list:
+      return
     message_list.append(m)
-    m.is_registered = 1
+    m.is_registered = True
 
   def unregisterMessage(self, activity_buffer, activity_tool, m):
-    m.is_registered = 0
+    m.is_registered = False
 
   def getRegisteredMessageList(self, activity_buffer, activity_tool):
     message_list = activity_buffer.getMessageList(self)

product/CMFActivity/Activity/SQLDict.py

@@ -96,17 +96,21 @@ class SQLDict(SQLBase):
     return (tuple(m.object_path), m.method_id, m.activity_kw.get('tag'), m.activity_kw.get('group_id'))
 
   def isMessageRegistered(self, activity_buffer, activity_tool, m):
+    # BBB: deprecated
     return self.generateMessageUID(m) in activity_buffer.getUidSet(self)
 
   def registerMessage(self, activity_buffer, activity_tool, m):
+    message_id = self.generateMessageUID(m)
+    uid_set = activity_buffer.getUidSet(self)
+    if message_id in uid_set:
+      return
+    uid_set.add(message_id)
     message_list = activity_buffer.getMessageList(self)
     message_list.append(m)
-    uid_set = activity_buffer.getUidSet(self)
-    uid_set.add(self.generateMessageUID(m))
-    m.is_registered = 1
+    m.is_registered = True
 
   def unregisterMessage(self, activity_buffer, activity_tool, m):
-    m.is_registered = 0 # This prevents from inserting deleted messages into the queue
+    m.is_registered = False # This prevents from inserting deleted messages into the queue
     class_name = self.__class__.__name__
     uid_set = activity_buffer.getUidSet(self)
     uid_set.discard(self.generateMessageUID(m))

product/CMFActivity/ActivityBuffer.py

@@ -93,13 +93,10 @@ class ActivityBuffer(TM):
 
   def deferredQueueMessage(self, activity_tool, activity, message):
     self._register(activity_tool)
-    # Activity is called to prevent queuing some messages (useful for example
-    # to prevent reindexing objects multiple times)
-    if not activity.isMessageRegistered(self, activity_tool, message):
-      self.queued_activity.append((activity, message))
-      # We register queued messages so that we can
-      # unregister them
+    assert not message.is_registered, message
     activity.registerMessage(self, activity_tool, message)
+    if message.is_registered:
+      self.queued_activity.append((activity, message))
 
   def sortKey(self, *ignored):
     """Activities must be finished before databases commit transactions."""

product/CMFActivity/ActivityTool.py

@@ -170,6 +170,7 @@ class Message(BaseMessage):
   processing = None
   traceback = None
   oid = None
+  is_registered = False
 
   def __init__(self, obj, active_process, activity_kw, method_id, args, kw, request=None, portal_activities=None):
     if isinstance(obj, str):